I've posted this before.
The Key to Bonzo's drumsound is an extremely well tuned kit.
His drums were tuned really tight. The Resonant (bottom) Head is tuned quite a bit tighter than the Batter (top) Head, which yields a "tympani" type of tom sound. No muffling is used.
Room Mic's. YOu can get a very Bonhamish sound with 3 microphones.
One on the kick (No real muffling), one on the snare, and a condenser placed DIRECTLY over the drummers head, and pointed straight down at their head. This overhead will give you a good balanced sound, BECAUSE the drummer is going to adjust their playing according to what they hear.
I had posted some audio files quite a long time ago, and some people loved the tom sound I was getting (which was extremely "Bonham-ish"...considering the fact that my kit is based on Bonzo's Stainless Steel kit (28" Kick, 15" mounted, 18" & 20" diameter floors). I've been recordinbg some demo's with one of the bands I play with (I'm in 3 bands) and another of the bands is preparing to record a CD, so I'm "tweeking" my kit trying to get it just right. Once We get some material recorded, I'm going to put some of the songs on MP3.com...then you guys can judge for yourselves.
Tim